[Icecast] port blocking/disruption i think

[Iain Mott]

found a fix - or a partial one. restarting pppoe sets a new IP address and
this clears the disruptions. Whether it was a deliberate obstruction or
some wierdness associated with having the same ip address for too long i
don't know - there was certainly no problem with the web, ftp etc though i
wasn't able to check access to other servers on the machine. will leave it
test till tomorrow and i'll likely set a daily pppoe restart if/when it
happens again.

cheers, iain